Quick background: TMPS came on. Found a tire to be 10-12 psi low. Put on spare and went about my busy day. Swung by where I got my tires to see if they could find why it was leaking since I couldn’t find anything obvious. They couldn’t find anything either. They told me they even they took it off the wheel.

Fast forward to today and I’m rotating my tires. While comparing treads I can’t figure out why they look so different. Check the sidewall: same brand, different types. So now I have 1 Eagle Sport and 3 Assurance. Guess I’ll call tomorrow.